Hand spray pump



Nov. 2s, 1933. C, W- HOLLINGSWORTH 1,937,344

HAND SPRAY PUMP Filed Sept. 21, 1931 .ze Y tion of the same.

Patented Nov. 28 1932?'y PATENT orrice HAND SPRAY PUMP n Carl. W.Hollingsworth, Marshalltown, Iowa Application September 21, 1931 SerialNo. 563,939

1 claim. (C1. 29e- 97) The object of this invention to provide a simpleand inexpensive form of spray pump adapted to be used in connection witha container for discharging a stream of liquid forcibly therefrom.

A further object of the invention is to provide an improved spray devicefor forcibly ejecting a stream of liquid and easily and convenientlydirecting the stream to the desired location.

With these and other objects in view my in- .vention consists in' theconstruction, arrangement and combination of the various parts of mydevice, whereby the objects contemplated are attained, as hereinaftermore fully set forth,

i" pointed out in my claim, and illustratedin the accompanying drawing,in which:-

Figure l is a perspective view'illustrating a container equipped with aspray device accordance with my invention. k v

Figure 2 is a slightly enlarged vertical vsec- Figure 3 is` an enlargedhorizontal section through a portion of thedevice on the line 3-3 ofFigure 2.

The spray device which forms the subject matter of this invention is tobe used in connection with a familiar form of container commonly usedfor disinfecting liquids, liquid insecticide, plant sprays, light oils,and the like, suchcontainer as here illustrated being in the form of acylindrical can l0, having a reduced threaded neel; 12. The containervmay be made of tin or other light weight sheet metal and the threadedneck 12 is provided with an ordinary screw cap 14. An arm 16 is mountedtransversely across the top of the cap 1a' and is suitably securedthereto. The major portion of the arm 16 in substantially horizontalposition and is turned downwardly at one end and shaped to form a handie18 adapted to be grasped in the hand of the A sleeve 20 is mountedthrough the top ofthe cap 14 andv through the central portion of the arm16 and is riveted or vupset at its upper end for the purpose of securelyholding the two parts together.

The sleeve 20 serves as a support and slide bearing for a tube 22 whichhas its lower end extended a considerable distance downwardly within thecontainer 10 and into liquid 24 there` in. The tube 22 is bent laterallyat a suitable distance above the bearing 20 and is threaded to receive anozzle26 which may be providedwith one or more restricted dischargeapertures 28.

An operating lever 30 is pivoted at 32 on the free end of theV arm 16and is formed at its 0pposite end with a thumb-piece 34 normallyarranged a short distance above the upper vend of thehandle 18, and insuch location that it may be engaged by the thumb of the hand in whichsaid handle is grasped. The lever 30 is formed intermediate of its endswith an opening 36 through which the tube 22 passes loose,- ly and aflange or collar 38 is fixed to said tube immediately beneath saidlever. l

Fixed to and extending downwardly from the top of the cap la is a framepreferably composed of a pair of spaced parallel arms 40 joined at theirupper ends by a connecting member 42 through which the sleeve 20 passes.The sleeve 2G is formed at its lower end with anenlargement orshoulder4a engaging thelower surface or" vthe connecting member.' A reinforcingwasher 46 preferably is mounted between the top of the cap lll and theconnecting member 42 of the .trame to strengthen the parts against bending and distortion. y, y y

The frame' includes an open ring V48 formed on or xed to the lower-endsof the arms 40, and said ring is' engaged and embraced by a cylinder 50which is open at its upper end and substantiallyr closed at `its lowerend, .said lower end being formed with an inlet port 52.

The lower end of the tube 22 enters and is arranged for reciprccation inthe cylinder 50 and is provided with a piston arranged for reciprocationtherein. The piston as here shown includes a trunk member 54 threaded onthe lower end of the tube and carrying a metallic washer 56 and a cupleather 58.

The lower end of the piston trunk member 54 is provided with a checkvalve including a retricted aperture 60 and a ball valve 62 engagingAthe upper end of said aperture.

A ball valve 64 is also mounted in the lower end 95 of the cylinder 56and normally closes the inlet aperture 52 which preferably is ofsomewhat greater capacity than theopening 60. On the ball valve 64 restsa concave-convex Washer 66 f which is engaged by an expansive coilspring 100 68 which inv turn engages at its upperend the piston.r Thespring 68 normally acts to hold the ball 64' in closing relation withrespect to the aperture 52 and also exerts upward pressure for movingthe piston, tube 22, and operat- 105` ing lever 30 to their upwardlimits of movement.

Any desiredv means may be employed for removably attaching the cylinder50 tothe frame. In the present instanee' have employed a pair of lugs 70which are formed on the upper end of 110 the cylinder and are bentinwardly between the arms and over the upper edge of the ring 48.

The container is supplied with any suitable liquid which it is desiredto spray or forcibly eject therefrom and the cylinder and frame areinserted through the neck 12 of the container and the cap 11i screwed inplace.

The handle 18 is held in one hand of the operator and pressure isapplied to the thumb piece 34 for oscillating the lever 3i) downwardly.The downward movement of the lever 30, by engagement with the stopcollar 38, causes the tube 22 to be moved downwardly through the slidebearing 20 and causes the piston to be reciprocated downwardly in thecylinder v50, thus compressing the spring 68.

When pressure on the operating lever is released the energy stored inthe spring 68 will cause the pist-on and tube to travel upwardly, thusmoving the lever and thumb piece back to their normal positions. It willbe observed that the lower end of the ring 48 may be employed as a stopfor limiting the upward movement of the parts by engagement of thepiston washer 56 therewith.

Repeated oscillation through pressure on the lever 30 andcountermovement through use of the spring 68 will cause a portion of theliquid 24 to enter the cylinder through the entrance aperture 52 and toenter the piston trunk member 54 and tube through the aperture 60 andthen to be carried upwardly` through the tube and disn charged throughthe aperture 28 of the nozzle. Y

Because of the arrangement of the parts the stream of liquid may becaused to be ejected with considerable force and to travel aconsiderable distance. It will also be found that the stream of liquidmay be directed to the desired location with considerable accuracybecause the lateral portion of the tube and its nozzle 26 may be pointedand aimed after the manner of a pistol. This spray device isexceptionally useful for spraying plants with liquid insecticide or forspraying disinfecting solutions into desired locations. It is alsouseful in ejecting quantities of light oil or penetrating oil againstdesired parts of machinery, such for instance as the body springs ofmotor vehicles.

If desired, a quantity of the liquid may be kept at all times in thecontainer l0 so that the spray device is always ready for use.

Some changes may be made in the construction and arrangement of theparts of my device without departing from the real spirit and purpose ofmy invention, and it is my intention to cover by my claim, any modiedforms of structure or use of mechanical equivalents, which may bereasonably included within its scope.

I claim as my invention:-

In combination with a container having a removable cover, a spray devicecomprising an arm xed to and extending diametrically across the top ofthe cover, said arm projecting in opposite directions beyond said coverand formed at one end with a handle portion, an operating lever pivotedto the other end of saidarm and having a thumb piece above said handleportion, a slide bearing extending through said cover and arm, a tubearranged for reciprocation in said bearing and extending within thecontainer, said tube extending loosely through said lever, a stop collaron said tube just below said lever, sai tube being bent laterally andprovided with a discharge nozzle on its outer end, a skeleton framesupported from said cover within the container, a cylinder carried bysaid frame, check-controlled means for admitting liquid from saidcontainer to the lower end of said cylinder, a piston on' said tubearranged for reciprocation in said cylinder, check-controlled means foradmitting liquid from said cylinder to said tube, and a coil spring inthe cylinder engaging the lower side of said piston.

CARL W. HOLLNGSWORTI-I.

